The 2002–03 NBDL season was the second for the National Basketball Development League. The season ended with the Mobile Revelers defeating the Fayetteville Patriots 2 games to 1 to win their first and only NBDL Championship.
There were only 8 teams in the league. For the playoffs, the four teams with the best record in the league were seeded one to four. Each round of the playoffs were played a best-of-three series.